The Freedom Tower that is to be built at the old WTC site in New York city was unveiled earlier today to huge fanfare. The building will be the tallest in the world at a height of 1,776 feet, a nod to the year the United States gained independence. An additional broadcast antenna placed on top of the spire may bring the total height of the structure to over 2,000 feet. If you like tall buildings, check out Skyscrapers.com.